Power cable disconnection 
Driver  thermal  power 
overload 
Regenerative  resistance 
overload 
Communication  error  of 
absolute servo encoder 
Too  many  CRC  errors  in 
encoder communication 
Absolute  value  servo  encoder 
battery low voltage alarm 
Absolute  value  servo 
encoder data access alarm 
Power  on  encoder  multi-turn 
signal data error 
Absolute  Servo  Encoder 
Value Overflow 
The  feedback  position 
deviation  between  motor 
encoder  and  external 
displacement  sensor  is  too 
large 
Fully  closed-loop  motor 
encoder  and  external  grating 
ruler counter direction reverse 
Full  closed  loop  external 
grating scale speed overrun 
Timing  error  in  fetching 
encoder position data 
Encoder reponse data is error 
code   
Overrun  signal  connection 
error 
Motor vibration too large   
Failed  to  access  motor 
parameters 
Error  writing  data  to  encoder 
EEPROM 
Reading  motor  parameter  is 
damaged 
Encoder  software  version 
mismatch 
Encoder  software  version  not 
supported 
Unable  to  read  valid  motor 
parameters 
Reading  motor  code  is 
inconsistent with setting code